For most beginners, the Garmin Forerunner 55 is enough to start running, while the Forerunner 165 is the better choice if you want a larger AMOLED touchscreen and more health and everyday features. Neither watch is inherently too advanced. Garmin positions the 55 for all skill levels, especially new runners, and describes the 165 Series as suitable for athletes at every level. The practical choice comes down to screen and controls, training guidance, battery expectations, health features, music needs and the current price in your region.
The short answer
Choose the Forerunner 55 when your priority is straightforward run tracking, physical buttons, a sunlight-visible display and the longest stated battery life. It includes GPS, wrist-based heart-rate monitoring, suggested workouts and adaptive Garmin Coach plans for 5K, 10K and half-marathon goals. Garmin introduced it in 2021 specifically as a watch that makes training information approachable for people who are new to running.
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Choose the Forerunner 165 when you prefer a modern AMOLED touchscreen, want more than core running metrics, or expect to use the watch for sleep, wellness and daily notifications as well as workouts. It adds features such as sleep score and insights, nap detection, morning report, Pulse Ox options, Garmin Pay, race-adaptive plans, running power and dynamics, Training Effect, courses and more than 25 activity profiles. Its battery estimates are still strong, but Garmin’s headline smartwatch figure is lower than the 55’s.
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1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteThere is no evidence here of a universal beginner winner or of a verified current price gap. Garmin’s official specifications and estimates explain the feature differences; they are not independent accuracy or battery tests. Check the like-for-like price for your country, and confirm whether you are comparing the standard 165 or the separate 165 Music model.
#1 Best Overall
- Easy-to-use running smartwatch with built-in GPS for pace/distance and wrist-based heart rate; brilliant AMOLED touchscreen display with traditional button controls; lightweight design in 43 mm size
- Up to 11 days of battery life in smartwatch mode and up to 19 hours in GPS mode
- Reach your goals with personalized daily suggested workouts that adapt based on performance and recovery; use Garmin Coach and race adaptive training plans to get workout suggestions for specific events
- 25+ built-in activity profiles include running, cycling, HIIT, strength and more
- As soon as you wake up, get your morning report with an overview of your sleep, recovery and training outlook alongside weather and HRV status (data presented is intended to be a close estimation of metrics tracked)
Forerunner 165 and 55 compared at a glance
| Category | Forerunner 165 | Forerunner 55 |
|---|---|---|
| Display | 1.2-inch (30.4 mm) AMOLED, 390 × 390 pixels | 1.04-inch (26.3 mm) sunlight-visible transflective MIP, 208 × 208 pixels |
| Controls | Physical buttons plus touchscreen; optional always-on display mode | Physical buttons; Garmin does not list a touchscreen |
| Weight | 39 g | 37 g |
| Water rating | 5 ATM | 5 ATM |
| Band | 20 mm industry-standard quick-release | 20 mm industry-standard quick-release |
| Smartwatch-mode estimate | Up to 11 days | Up to 2 weeks |
| GPS estimate | Up to 19 hours in GPS-only GNSS mode; up to 17 hours in All-Systems GNSS mode | Up to 20 hours in GPS mode |
| Battery Saver smartwatch estimate | Up to 20 days | Not stated in the cited comparison |
| Training features | Suggested workouts, race-adaptive plans, completion-time predictions, running power and dynamics, Training Effect, courses and more than 25 activity profiles | Suggested workouts, adaptive Garmin Coach 5K/10K/half-marathon plans, PacePro, finish-time estimator, cadence alerts and recovery time |
| Health and daily features listed by Garmin | Sleep score and insights, sleep monitoring, nap detection, morning report, Pulse Ox, Garmin Pay and smart notifications | All-day activity and wellness tracking, stress, relaxation reminders, Body Battery and menstrual-cycle or pregnancy tracking in Garmin Connect |
| Onboard music | Only the separate Forerunner 165 Music variant stores music for phone-free listening | Not stated as an onboard-music model in the cited comparison |
All dimensions, weights, ratings, features and battery figures in this table are Garmin’s published specifications or estimates. A rating such as 5 ATM describes the watch’s water-resistance classification; it is not a promise that every water activity or long-term exposure is harmless.
Why both watches work for a first training plan
Beginner support on the Forerunner 55
The 55 is not a stripped-down stopwatch. Its built-in GPS records outdoor routes and pace, while wrist-based heart-rate monitoring supplies effort data without a chest strap for ordinary runs. Daily suggested workouts can give you a session to follow when you do not yet know how to structure easy runs, intervals or recovery days.
Garmin’s adaptive Coach plans cover 5K, 10K and half-marathon distances. The plan adjusts to your goal and progress through Garmin Connect rather than handing you a fixed calendar that ignores how training is going. PacePro, a finish-time estimator, cadence alerts and recovery-time information add guidance once you start paying attention to pacing and rest.
Garmin’s June 2021 launch description said the Forerunner 55 was designed for runners of all skill levels, especially people new to running. That positioning matters: the 55’s simpler interface is an intentional way to make the important data digestible, not evidence that it is unsuitable for serious goals.
What the Forerunner 165 adds
The 165 keeps the same beginner-friendly foundation of GPS, wrist heart rate, suggested workouts and Garmin Coach plans. Garmin’s February 2024 165 Series announcement adds race-adaptive plans, daily suggestions, completion-time predictions, wrist-based running power and running dynamics, Training Effect, courses and more than 25 activity profiles.
Those additions are useful when your interests expand beyond “How far did I run?” Running dynamics and power can provide additional ways to examine effort; Training Effect helps describe how a session contributes to fitness; and courses are useful when you want to follow a planned route. None of these features guarantees a faster race or replaces a qualified coach. They are training aids whose value increases as you learn how to interpret them.
Which training interface is easier?
Ease depends on whether you prefer physical buttons or touch interaction. The 55 uses buttons and a smaller, lower-resolution MIP display. That approach avoids accidental taps and remains familiar when your fingers are wet or you are wearing gloves. The 165 combines buttons with a touchscreen, so you can interact more like you would with a phone while retaining buttons for workout control.
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An AMOLED screen generally makes menus and graphics look more vivid, but the 165’s display choice is subjective. Garmin lists an optional always-on mode; using it, frequent notifications, continuous heart-rate tracking, GPS and connected sensors can all change how long the battery lasts.
Display, size and controls: the biggest day-to-day difference
Forerunner 165: larger AMOLED touchscreen
The 165 has a 1.2-inch (30.4 mm) AMOLED panel with 390 × 390 pixels. It is physically larger and substantially higher resolution than the 55’s panel, which gives menus, workout fields and notifications more room. The touchscreen can make scrolling and selecting items feel familiar, and the optional always-on setting keeps basic information visible when you are not raising your wrist.
Rank #2
- Easy-to-use running smartwatch with built-in GPS for pace/distance and wrist-based heart rate; brilliant AMOLED touchscreen display with traditional button controls; lightweight design in 43 mm size
- Up to 11 days of battery life in smartwatch mode and up to 19 hours in GPS mode
- Reach your goals with personalized daily suggested workouts that adapt based on performance and recovery; use Garmin Coach and race adaptive training plans to get workout suggestions for specific events
- 25+ built-in activity profiles include running, cycling, HIIT, strength and more
- As soon as you wake up, get your morning report with an overview of your sleep, recovery and training outlook alongside weather and HRV status (data presented is intended to be a close estimation of metrics tracked)
AMOLED is not automatically better for every runner. It can use more power than a transflective display when bright or always-on modes are active, and some runners prefer buttons during intervals. The 165 still has physical buttons, so you can avoid relying on touch for every action.
Forerunner 55: compact MIP display and buttons
The 55 uses a 1.04-inch (26.3 mm), 208 × 208-pixel sunlight-visible transflective memory-in-pixel display. MIP screens are designed to use available light rather than behave like a bright phone panel. Garmin does not list a touchscreen for the 55, so navigation is button-based.
The 55 weighs 37 g, compared with 39 g for the 165. Both use a 20 mm industry-standard quick-release band and carry a 5 ATM water rating. The two-gram difference is unlikely to decide a purchase by itself; fit, display preference and controls are more meaningful choices.
Battery life: longer estimates on the 55, more detail on the 165
Garmin’s official comparison lists the Forerunner 165 at up to 11 days in smartwatch mode, up to 20 days in Battery Saver smartwatch mode, up to 19 hours in GPS-only GNSS mode and up to 17 hours in All-Systems GNSS mode. For the Forerunner 55, Garmin lists up to two weeks in smartwatch mode and up to 20 hours in GPS mode.
These are maximum estimates under Garmin’s stated conditions, not a guaranteed number of days between charges. The Forerunner 165 owner manual specifically says actual life depends on enabled features, including activity tracking, wrist-based heart rate, phone notifications, GPS and connected sensors. The same principle applies when you compare the 55’s headline figures with your own use.
How to choose based on charging habits
- Choose the 55 if you want the longer stated smartwatch estimate and do not want to manage an AMOLED display or additional sensors.
- Choose the 165 if you accept a shorter headline estimate in exchange for its display and features, and you are comfortable adjusting settings such as always-on mode, notifications and sensor connections.
- If you record long activities, compare the relevant GPS mode rather than smartwatch mode. The 165’s 17-hour All-Systems estimate and 19-hour GPS-only estimate are different operating conditions.
A beginner who charges both watches on a regular routine may notice little practical difference. Someone who travels, forgets chargers or records long GPS sessions should treat the published estimates as an important selection factor.
Health, wellness and everyday smartwatch features
Features listed for the Forerunner 165
Garmin lists sleep score and insights, sleep monitoring, nap detection and a morning report for the 165 Series. It also lists Pulse Ox, which can be configured for spot checks, during sleep or all day, and Garmin Pay. Smart notifications extend the watch beyond workouts.
These are consumer-device features, not medical diagnoses. Pulse Ox readings and sleep scores can be affected by fit, movement, skin contact and other conditions. Use them as context for your habits, and consult a clinician for health decisions.
Features listed for the Forerunner 55
The 55 covers all-day activity and wellness tracking through Garmin’s ecosystem. Garmin’s launch material lists stress tracking, relaxation reminders, Body Battery and menstrual-cycle or pregnancy tracking in Garmin Connect. That gives the 55 more everyday context than a basic GPS timer, even though Garmin’s comparison does not list the 165’s sleep-score, Pulse Ox or Garmin Pay entries for it.
Rank #3
- Easy-to-use running watch monitors heart rate (this is not a medical device) at the wrist and uses GPS to track how far, how fast and where you’ve run.Special Feature:Bluetooth.
- Battery life: up to 2 weeks in smartwatch mode; up to 20 hours in GPS mode
- Plan your race day strategy with the PacePro feature (not compatible with on-device courses), which offers GPS-based pace guidance for a selected course or distance
- Run your best with helpful training tools, including race time predictions and finish time estimates
- Track all the ways you move with built-in activity profiles for running, cycling, track run, virtual run, pool swim, Pilates, HIIT, breathwork and more
The absence of a listed comparison entry should not be read as a claim about every software update or regional configuration. Garmin’s published side-by-side page is the basis for the feature distinction here, so verify the current specification for your market before buying.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchMusic: the 165 model name matters
The standard Forerunner 165 should not be treated as a watch with built-in music storage. Garmin states that music storage and phone-free listening with wireless headphones are available on the separate Forerunner 165 Music variant. If you want to leave your phone at home and listen to downloaded audio, select the Music model and confirm the retailer’s exact model name.
If you are happy to carry a phone, the standard 165 may still meet your needs for notifications and connected listening, but that is different from storing music on the watch. Do not pay a premium for the wrong version or assume every 165 listing includes the Music feature.
How to decide as a beginner
Pick the Forerunner 55 when these statements describe you
- You want the essential running functions without a large set of extra metrics.
- You prefer physical buttons and a simple, sunlight-visible MIP screen.
- You value Garmin’s longer stated smartwatch and GPS estimates.
- Your main goals are completing a first 5K, 10K or half-marathon with structured guidance.
- You find the local price materially lower than a comparable 165.
Pick the Forerunner 165 when these statements describe you
- You want a larger, sharper AMOLED screen and the option of touchscreen navigation.
- You expect to use sleep score, nap detection, morning report, Pulse Ox, Garmin Pay or richer notifications.
- You want more than 25 activity profiles, courses, Training Effect or running power and dynamics as your training develops.
- You like race-adaptive plans and completion-time predictions in addition to daily suggestions.
- You are willing to trade some of the 55’s stated battery headroom for those features.
When neither is an obvious winner
If your only requirement is recording runs and following a beginner plan, both watches meet it. If you cannot decide between touch and buttons, try each interface in a store or use the return policy offered by your seller. If the 165 costs considerably more in your market, its extra features matter only if you will use them. Conversely, buying the 55 and later wishing for the 165’s display, sleep tools or payment support can cost more than choosing the newer model initially.
A practical setup for your first week
The menus can change with firmware and region, but the following workflow keeps the first setup focused on useful information rather than every available metric.
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- Charge and pair the watch. Use Garmin’s supplied proprietary charging cable, install Garmin Connect on your phone, sign in and complete the pairing prompts. Allow notifications only from apps you actually need during runs.
- Set your personal profile. Enter age, sex, height, weight and activity information accurately. These values influence estimates and calorie calculations; they do not turn the watch into a medical instrument.
- Choose a goal. In Garmin Connect, select a Garmin Coach 5K, 10K or half-marathon plan if one matches your target. Both models support these coaching distances according to Garmin’s launch materials.
- Start with suggested workouts and easy effort. Follow the daily suggestion when it fits your schedule, but substitute rest if you feel unwell or injured. A watch cannot assess every recovery or medical concern.
- Customize data screens. Begin with a small set such as elapsed time, distance, pace and heart rate. Add cadence, power or other fields only when you understand why you need them.
- Review recovery information after sessions. The 55 provides recovery time, while the 165 adds Training Effect and additional dynamics. Treat these as guidance for planning your next session, not as a command to train or rest.
- Check battery settings. On the 165, decide whether always-on display, Pulse Ox, phone notifications and connected sensors are worth their power cost. Disable options you do not use before a long GPS activity.
- Wear the watch consistently. A secure fit supports more consistent wrist readings. Keep the sensor area clean and follow Garmin’s care instructions, especially after sweat or swimming.
Common buying and usage mistakes
Assuming “newer” means “better for every beginner”
The 165 launched in February 2024, while the 55 launched in June 2021, but age alone does not determine suitability. The 55’s button-first design and longer estimates can be exactly what a new runner wants. The 165 is the better fit when its display and extra features solve a real need.
Comparing battery numbers without matching modes
Do not compare the 165’s 17-hour All-Systems GNSS estimate with the 55’s 20-hour GPS estimate as if they were identical tests. GNSS mode, satellite settings, notifications, heart-rate tracking and sensors all affect consumption.
Buying the wrong music version
Confirm that a listing says “Forerunner 165 Music” if onboard storage and phone-free listening are essential. The standard 165 does not automatically include those capabilities.
Treating wellness metrics as diagnoses
Sleep scores, Body Battery, stress readings and Pulse Ox can help you notice patterns, but they are not clinical tests. A concerning symptom or persistent reading belongs with a healthcare professional, not a watch setting.
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Rank #4
- Easy-to-use running smartwatch with built-in GPS for pace/distance and wrist-based heart rate; brilliant AMOLED touchscreen display with traditional button controls; lightweight design in 43 mm size
- Up to 11 days of battery life in smartwatch mode and up to 19 hours in GPS mode
- Reach your goals with personalized daily suggested workouts that adapt based on performance and recovery; use Garmin Coach and race adaptive training plans to get workout suggestions for specific events
- 25+ built-in activity profiles include running, cycling, HIIT, strength and more
- As soon as you wake up, get your morning report with an overview of your sleep, recovery and training outlook alongside weather and HRV status (data presented is intended to be a close estimation of metrics tracked)
Paying an assumed premium
Garmin’s cited official comparison does not establish a current like-for-like US price difference, and prices vary by country, retailer, promotion and Music configuration. Compare the actual local prices on the day you buy, including the exact model and warranty terms, before declaring one a better value.
What the specifications mean for real beginner scenarios
Training for a first 5K
Either watch can provide GPS distance, wrist heart rate, daily suggestions and a Garmin Coach 5K plan. The 55 is the economical, uncomplicated option if you only need those tools. The 165 helps if you also want sleep feedback, a larger screen for checking intervals or richer activity tracking.
Running in bright outdoor conditions
The 55’s transflective MIP panel is specifically described as sunlight-visible. The 165’s AMOLED screen is larger and higher resolution, but display preference and brightness settings affect how it looks outdoors. Neither manufacturer specification is an independent readability test.
Using the watch for work and daily life
The 165’s sleep score, nap detection, morning report, Garmin Pay and smart notifications make it the more capable everyday companion on Garmin’s listed features. The 55 still supplies activity, stress, relaxation, Body Battery and cycle-related tracking through Garmin Connect, so it is not limited to run mode.
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The 165 Series includes more than 25 activity profiles according to Garmin’s announcement. That breadth is useful if you expect to add cycling, walking, strength work or other activities. The 55 can still serve a runner who does not need a large profile library; choose based on the activities you actually plan to record.
Bottom line for beginners
The Forerunner 55 is the sensible starting point for a beginner who wants reliable core running guidance, physical controls, a sunlight-visible MIP display and Garmin’s longest stated battery estimates. It is explicitly designed for newcomers and supports structured goals through Garmin Coach.
The Forerunner 165 is the stronger all-round choice when the watch will also be a daily health and smartwatch device. Its 1.2-inch AMOLED touchscreen, sleep and wellness additions, broader activity support and newer training tools justify choosing it when you will use them. Select the 165 Music variant only if onboard music and phone-free listening are required.
Before ordering, compare the current local price for the exact model, decide whether you prefer AMOLED touch controls or a MIP button interface, and consider how often you record GPS activities. Those three checks produce a more dependable beginner recommendation than labeling one watch universally “better.”
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
